Car-roof.



UNITED STATES Patented October 6, 1903.

PATENT OFFICE.

LOUIS SPENCER FLATAU, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO E.S. MARSHALL, OF ST. LOUIS, MISSOURI.

CAR-ROOF.

srncirrcnrion 'forming part of Lettersratentrro. 740,838, dated october-6, 1903.

Application filed May 19, 1903. Serial No. 157,860. (No model.)

To @ZZ whom, it' may concern:

Be it known that I, Louis SPENCER FLArrAU,

a citizen of the United States, residing at St.`

' firmly secured in place by simple means.

The simple and novel construction employed by me in carrying out myinvention is fully described and claimed, and illustrated in theaccompanying drawings, forming a part hereof, in Which- Figure l is aperspective ot' a section of my roofing,V showing one of the improvedjoints. Fig. 2 is a transverse section of the same with the ridgesswaged. l

Like numerals of reference designate like parts in the different viewsof the drawings.

In forming my roof metal plates l are taken and their edges crimped toform two parallel ridges 2, extending above the plane of the plate l,there being a valley 3 between the ridges, the bottom or floor 4 ofwhich lies in the plane of the sheet l produced. A flange 5 is formedonthe side of the outer ridge and is on a level with the door 4 of thevalley. When the edges have been crimped in. this manner, two plates lare taken and their corresponding edges united by nesting the ridges 2and valleys 3, after which a rod 1.6, of stift wire, is placed withinthe upper valley 3.

To hold the rod 6 in place the ridges 3 are swaged until they meet andcompletely inclose the rod 6. The ends of the rods 6 project beyond theedges of the roof, where they are secured by staples 7.

I do not wish to be limited as to details of construction, as these maybe modified in Vmany particulars Without departing from the spirit of myinvention.

.K Having thus described my invention, what AIclaizn as new, and desireto secure by Letters Patent, is-

l. In a metal roof, two plates each having one of its edges crimped toform two ridges Y with an intervening valley, said plates being LOUISSPENCER FLATAU Witnesses v JAs. M. Srsnnn, E. M. BYRNE.'

